1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2017 The Qt Company Ltd. 4 ** Contact: http://www.qt.io/licensing/ 5 ** 6 ** This file is part of the Qt Quick Templates 2 module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL3$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see http://www.qt.io/terms-conditions. For further 15 ** information use the contact form at http://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPLv3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or later as published by the Free 28 ** Software Foundation and appearing in the file LICENSE.GPL included in 29 ** the packaging of this file. Please review the following information to 30 ** ensure the GNU General Public License version 2.0 requirements will be 31 ** met: http://www.gnu.org/licenses/gpl-2.0.html. 32 ** 33 ** $QT_END_LICENSE$ 34 ** 35 ****************************************************************************/ 36 37 #ifndef QQUICKLABEL_P_P_H 38 #define QQUICKLABEL_P_P_H 39 40 // 41 // W A R N I N G 42 // ------------- 43 // 44 // This file is not part of the Qt API. It exists purely as an 45 // implementation detail. This header file may change from version to 46 // version without notice, or even be removed. 47 // 48 // We mean it. 49 // 50 51 #include <QtQml/private/qlazilyallocated_p.h> 52 #include <QtQuick/private/qquicktext_p_p.h> 53 #include <QtQuick/private/qquickitemchangelistener_p.h> 54 #include <QtQuickTemplates2/private/qquickdeferredpointer_p_p.h> 55 56 #if QT_CONFIG(accessibility) 57 #include <QtGui/qaccessible.h> 58 #endif 59 60 QT_BEGIN_NAMESPACE 61 62 class QQuickLabelPrivate : public QQuickTextPrivate, public QQuickItemChangeListener 63 #if QT_CONFIG(accessibility) 64 , public QAccessible::ActivationObserver 65 #endif 66 { 67 Q_DECLARE_PUBLIC(QQuickLabel) 68 69 public: 70 QQuickLabelPrivate(); 71 ~QQuickLabelPrivate(); 72 get(QQuickLabel * item)73 static QQuickLabelPrivate *get(QQuickLabel *item) 74 { 75 return static_cast<QQuickLabelPrivate *>(QObjectPrivate::get(item)); 76 } 77 getInset()78 inline QMarginsF getInset() const { return QMarginsF(getLeftInset(), getTopInset(), getRightInset(), getBottomInset()); } getTopInset()79 inline qreal getTopInset() const { return extra.isAllocated() ? extra->topInset : 0; } getLeftInset()80 inline qreal getLeftInset() const { return extra.isAllocated() ? extra->leftInset : 0; } getRightInset()81 inline qreal getRightInset() const { return extra.isAllocated() ? extra->rightInset : 0; } getBottomInset()82 inline qreal getBottomInset() const { return extra.isAllocated() ? extra->bottomInset : 0; } 83 84 void setTopInset(qreal value, bool reset = false); 85 void setLeftInset(qreal value, bool reset = false); 86 void setRightInset(qreal value, bool reset = false); 87 void setBottomInset(qreal value, bool reset = false); 88 89 void resizeBackground(); 90 91 void resolveFont(); 92 void inheritFont(const QFont &font); 93 void updateFont(const QFont &font); setFont_helper(const QFont & font)94 inline void setFont_helper(const QFont &font) { 95 if (sourceFont.resolve() == font.resolve() && sourceFont == font) 96 return; 97 updateFont(font); 98 } 99 100 void resolvePalette(); 101 void inheritPalette(const QPalette &palette); 102 void updatePalette(const QPalette &palette); setPalette_helper(const QPalette & palette)103 inline void setPalette_helper(const QPalette &palette) { 104 if (resolvedPalette.resolve() == palette.resolve() && resolvedPalette == palette) 105 return; 106 updatePalette(palette); 107 } 108 109 void textChanged(const QString &text); 110 111 #if QT_CONFIG(accessibility) 112 void accessibilityActiveChanged(bool active) override; 113 QAccessible::Role accessibleRole() const override; 114 void maybeSetAccessibleName(const QString &name); 115 #endif 116 117 void cancelBackground(); 118 void executeBackground(bool complete = false); 119 120 void itemGeometryChanged(QQuickItem *item, QQuickGeometryChange change, const QRectF &diff) override; 121 void itemImplicitWidthChanged(QQuickItem *item) override; 122 void itemImplicitHeightChanged(QQuickItem *item) override; 123 void itemDestroyed(QQuickItem *item) override; 124 125 struct ExtraData { 126 bool hasTopInset = false; 127 bool hasLeftInset = false; 128 bool hasRightInset = false; 129 bool hasBottomInset = false; 130 bool hasBackgroundWidth = false; 131 bool hasBackgroundHeight = false; 132 qreal topInset = 0; 133 qreal leftInset = 0; 134 qreal rightInset = 0; 135 qreal bottomInset = 0; 136 QFont requestedFont; 137 QPalette requestedPalette; 138 }; 139 QLazilyAllocated<ExtraData> extra; 140 141 bool resizingBackground = false; 142 QPalette resolvedPalette; 143 QQuickDeferredPointer<QQuickItem> background; 144 }; 145 146 QT_END_NAMESPACE 147 148 #endif // QQUICKLABEL_P_P_H 149